The lucky few creative works that made it into general circulation were what copyright law was supposed to cultivate and protect.

那些幸运的为数不多的成功进入公众发行的原创作品成为了版权法要培养和保护的对象。

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This paper presents a computer simulation model of the cardiovascular circulation system, which describes the blood flow dynamic law in the cardiovascular system by the state equation.

建立一种心血管循环系统的计算机仿真模型，即描述心血管循环系统内血流动力学变量变化规律的状态方程。

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Gross invasions of privacy such as urine testing, excessive property forfeitures and seizures without due process of law, the circulation of extensive government files on suspected drug offenders, and border patrols and checkpoints that inhibit free travel, all are among the draconian actions deemed necessary to wage the war on drugs.

CENTERFORSECURITYPOLICY: The Case Against the Halperin Nomination �� White Paper

Whereas earlier copyright law, including international agreements like the 1886 Berne Convention, had been written to regulate the circulation of printed materials, the Rome Convention responded to the new circumstance of ideas variously represented in easily reproduced units by covering performers and producers of recordings under copyright.

UNESCO: UK National Commission for UNESCO - UNESCO Conventions, Recommendations & Declarations in the UK